python: Dictionary counter items. How to optimize performance Question: I need to keep track of occurrences of items in parsed files in a structure as follows: data= {‘tomate’: {‘John’: 2, ‘mike’: 2}, ‘pasta’: {‘mike’: 1}, ‘wine’: {‘mike’: 1, ‘alex’: 2}} the dictionary starts as empty one. data = {} and its is being populated with …
Code not looping through the rest of my file or resetting the counter Question: Currently trying to loop through a file with addresses in python, but for some reason instead of looping through the entire file – it stops at the first line. I tried resetting the counter and making it go back to the …
Python: Weird result while indexing the dictionary from collections.Counter Question: Let’s say I have a list of numbers numbers = [‘3’, ‘3’, ‘4’, ‘4’] I want to count the number of occurrences of the elements in the list, so I use collections.Counter from collections import Counter result = Counter(numbers) result Counter({‘3’: 2, ‘4’: 2}) Here’s …
Using a counter in a python function Question: I am trying to count the iterations in a function, but I can’t get it right. What is wrong with the code? Every time I call the function, the counter give me zero as a result. I want to add a pause between iteration an print the …
Pandas Series of lists of strings how to count and append to df per row Question: Summarize the problem I have a Dataframe with a Series of lists of strings. I can use a Counter from ‘collections’ to iterate over each row of the series and count the times each string appeared easy enough: for …
Python Pandas DataFrame: create a counter in the column based on start-counting condition Question: I want to program a counter with python which counts the "1-values" in the column "values". The counter has to start counting after the first 0 value in the rows. As it is seen in the example: the counter value for …
Python adding Counter objects with negative numbers fails Question: why do adding an empty counter to another with a negative value results in 0 from collections import Counter a=Counter({‘a’:-1}) b=Counter() print(a+b) Result Counter() but if the counter added to the empty one has a positive value it works. How do I preserve those negative values? …
Function to see if i can generate phrase from characters string Question: I am trying to write a function that checks if I can generate the required word/phrase using the characters provided. The phrase created can contain any characters including special characters, capital letters, numbers, and spaces. I can generate the phrase if the frequency …
How to find the most common name in 2 related lists Question: I would like to seek help from the community.. I have 2 related lists here: names = [‘alan_grant’, ‘alan_grant’, ‘alan_grant’, ‘alan_grant’, ‘alan_grant’, ‘claire_dearing’, ‘claire_dearing’, ‘claire_dearing’, ‘claire_dearing’, ‘claire_dearing’, ‘ellie_sattler’, ‘ellie_sattler’, ‘ellie_sattler’, ‘ellie_sattler’, ‘ellie_sattler’, ‘ian_malcolm’, ‘ian_malcolm’, ‘ian_malcolm’, ‘ian_malcolm’, ‘ian_malcolm’, ‘john_hammond’, ‘john_hammond’, ‘john_hammond’, ‘john_hammond’, ‘john_hammond’, ‘owen_grady’, …
Why is my counter not updated by "count == count + 1"? Question: answers = [] for syn in all_words : count = 0 result = [syn, count] for Document in Corpus: for Word in Document: if syn == Word : count == count + 1 answers.append(tuple(result)) i’m trying to count the number of occurrences …
